diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/hyp-entry.S')
| -rw-r--r-- | arch/arm64/kvm/hyp/hyp-entry.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index 8f3f93fa119e..03f97d71984c 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -154,6 +154,12 @@ SYM_CODE_END(\label) esb stp x0, x1, [sp, #-16]! 662: + /* + * spectre vectors __bp_harden_hyp_vecs generate br instructions at runtime + * that jump at offset 8 at __kvm_hyp_vector. + * As hyp .text is guarded section, it needs bti j. + */ + bti j b \target check_preamble_length 661b, 662b @@ -165,6 +171,8 @@ check_preamble_length 661b, 662b nop stp x0, x1, [sp, #-16]! 662: + /* Check valid_vect */ + bti j b \target check_preamble_length 661b, 662b |